Lowrance electronic M56 - Manual (Page 128)

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Overlay data uses many of the same types of information available in
data boxes (see Customize Page Displays earlier in this section), but the
overlaid text is shown without boxes. It's another feature that lets you
fully customize the screens to fit your viewing preferences.
To change the digital data shown on top of the Sonar Page or the Map
Page:
First, press PAGES , use
→ or ← to select a Page Name, then press
EXIT .
To select data for display:
1. From the Map or Sonar page, press MENU |
↓ to
O VERLAY D ATA
| ENT .
2. Press
↓ or ↑ to select Data Type|
ENT .
Overlay Data command on the Sonar Menu, at left. Overlay Data
Shown selection menu, right. In this example, we scrolled down the
data list to highlight "Ground Speed."
When selected, the data type shifts to the top of the data list and a
check mark appears beside the data type. (If you wish, you may now
use
↓ or ↑ to select other Data Types for display.)
Data list showing "Ground Speed" selected to display on Map Page.